EFFECT OF RICE HUSK ASH AND STEEL FIBERS ON SELF-COMPACTING CONCRETE PROPERTIES

Abstract

Steel fiber waste is in the form of ductile and tough fibers, making it suitable for increasing the tensile strength and flexural strength of Self-Compacting Concrete (SCC). The use of rice husk ash (RHA) as an additive in SCC concrete is expected to improve the quality of SCC concrete while reducing the use of Portland cement as an adhesive. This study aims to examine the tensile strength and flexural performance of SCC concrete beams with rice husk ash added and steel wire scrap waste. The research was conducted by making a concrete beam specimen to examine the flexural performance, and a concrete cylinder test object to examine the tensile strength and compressive strength of concrete. The specimens were made with 4 variations; the variations used are distinguished based on the percentage of RHA and steel fiber waste. The results showed that the use of RHA in SCC concrete can increase the compressive strength of concrete. It is proven that concrete with RHA added increases compressive strength by 8.45%. The use of steel fiber waste in SCC RHA concrete can increase the tensile strength of concrete by 28.15%, increasing the flexural strength by 9.3%. So, it can be concluded that the addition of RHA and steel fiber waste to the SCC mixture can increase the strength of the SCC.